发明名称 |
Drilling machine |
摘要 |
A drilling machine capable of performing drilling operation at a high speed with low noise and without requiring a large thrust. The drilling machine includes a main shaft rotatable by an output shaft of a motor, and a spindle having an impact-receiving section and disposed over the main shaft slidably in its axial direction and rotatable together with the rotation of the main shaft. A piston 25 is reciprocatingly slidably disposed over the main shaft for impacting against the impact-receiving section. A piston drive unit is disposed for driving the piston with a compressed fluid. A compressed fluid supplying unit is disposed for supplying the compressed fluid to the piston drive unit. A drill bit is attachable to the spindle. When performing drilling operation, the drill bit is imparted with a combined rotational motion and the reciprocal impact motion.
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申请公布号 |
US2005173140(A1) |
申请公布日期 |
2005.08.11 |
申请号 |
US20050049688 |
申请日期 |
2005.02.04 |
申请人 |
ODA HIROYUKI;TERUNUMA YUKIO;OGURA MASAYUKI |
发明人 |
ODA HIROYUKI;TERUNUMA YUKIO;OGURA MASAYUKI |
分类号 |
B23B45/16;B25D9/04;B25D16/00;B25D17/22;B28D1/26;(IPC1-7):E21B4/14 |
主分类号 |
B23B45/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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